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Cassini Imaging Science: Instrument Characteristics And Anticipated Scientific Investigations At Saturn

Porco, Carolyn C. and West, Robert A. and Squyres, Steven and McEwen, Alfred and Thomas, Peter and Murray, Carl D. and Delgenio, Anthony and Ingersoll, Andrew P. and Johnson, Torrence V. and Neukum, Gerhard and Veverka, Joseph and Dones, Luke and Brahic, Andre and Burns, Joseph A. and Haemmerle, Vance and Knowles, Benjamin and Dawson, Douglas and Roatsch, Thomas and Beurle, Kevin and Owen, William (2004) Cassini Imaging Science: Instrument Characteristics And Anticipated Scientific Investigations At Saturn. Space Science Reviews, 115 (1-4). pp. 363-497. ISSN 0038-6308. doi:10.1007/s11214-004-1456-7.

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The Cassini Imaging Science Subsystem (ISS) is the highest-resolution two-dimensional imaging device on the Cassini Orbiter and has been designed for investigations of the bodies and phenomena found within the Saturnian planetary system. It consists of two framing cameras: a narrow angle, reflecting telescope with a 2-m focal length and a square field of view (FOV) 0.35∘ across, and a wide-angle refractor with a 0.2-m focal length and a FOV 3.5∘ across. At the heart of each camera is a charged coupled device (CCD) detector consisting of a 1024 square array of pixels, each 12 μ on a side. The data system allows many options for data collection, including choices for on-chip summing, rapid imaging and data compression. Each camera is outfitted with a large number of spectral filters which, taken together, span the electromagnetic spectrum from 200 to 1100 nm. These were chosen to address a multitude of Saturn-system scientific objectives: sounding the three-dimensional cloud structure and meteorology of the Saturn and Titan atmospheres, capturing lightning on both bodies, imaging the surfaces of Saturn’s many icy satellites, determining the structure of its enormous ring system, searching for previously undiscovered Saturnian moons (within and exterior to the rings), peering through the hazy Titan atmosphere to its yet-unexplored surface, and in general searching for temporal variability throughout the system on a variety of time scales. The ISS is also the optical navigation instrument for the Cassini mission. We describe here the capabilities and characteristics of the Cassini ISS, determined from both ground calibration data and in-flight data taken during cruise, and the Saturn-system investigations that will be conducted with it. At the time of writing, Cassini is approaching Saturn and the images returned to Earth thus far are both breathtaking and promising.

Item Type:Article
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West, Robert A.0000-0002-4320-2599
Ingersoll, Andrew P.0000-0002-2035-9198
Additional Information:© 2004 Kluwer Academic Publishers. Received 8 January 2004; Accepted in final form 18 May 2004. A great many people over the last 13.5 years have contributed to the success of the Cassini Imaging Science experiment. It would be an impossible task to name every one. Special thanks go to the engineers at JPL with whom the Imaging Team had the pleasure of working in designing and developing the cameras in the pre-launch years: notable among them are Tom Livermore, William Harris, Cindy Kahn, Len Snyder, and Lloyd Adams.We also thank the scientists, engineers and others across the imaging team and at JPL who have either made significant contributions in the pre-launch years to the calibration of the instrument or are currently responsible for various aspects of the operations and in-flight calibration of the ISS: John Barbara, Michael Belanger, Emma Birath, Rachel Carson, Sebastien Charnoz, Chris Clark, Tilmann Denk, Preston Dyches, Mike Evans, Joe Ferrier, Heidi Finn,Kevin Grazier, Paul Helfenstein, Pauline Helfenstein, Bob Jacobson, Dyer Lytle, Nicole Martin, Dave O’Brien, Leslie Pieri, Jon Proton, Josh Riley, Diane Sherman, Joseph Spitale, Elizabeth Turtle, Ashwin Vasavada, DarenWilson, Charlie Avis, Amy Culver, John Diehl, James Gerhard, Tina Pavlicek, Candy Hansen, Brad Wallis, and others. We also thank Phillip Dumont at JPL whose code was used to calculate contrasts on Titan.
Group:UNSPECIFIED, Division of Geological and Planetary Sciences
Subject Keywords:Cassini, Saturn, Imaging, Rings, Moons
Issue or Number:1-4
Record Number:CaltechAUTHORS:20131127-112348137
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Official Citation:Cassini Imaging Science: Instrument Characteristics And Anticipated Scientific Investigations At Saturn Carolyn C. Porco, Robert A. West, Steven Squyres, Alfred Mcewen… Pages 363-497
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:42756
Deposited By: Ruth Sustaita
Deposited On:27 Nov 2013 22:30
Last Modified:10 Nov 2021 16:27

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